时珍国医国药2026，Vol.37Issue(12)：2263-2270,8.DOI:10.70976/j.1008-0805.SZGYGY-2026-1209
苗期低温胁迫对当归生长及生理特性的影响
Effects of low temperature stress during seedling stage on growth and physiological character-istics of Angelica sinensis(Oliv.)Diels
摘要
Abstract
Objective To study the effects of low temperature stress during seedling stage on growth and physiological characteristics of facility-cultivated Angelica sinensis(Oliv.)Diels seedlings.Methods 120-day-old Angelica sinensis seedlings from off-season facility cultivation were used as experimental materials.The seedlings were subjected to artificial low temperature stress at 5℃,10℃,and 15℃for 1 to 7 days,followed by a 7-day recovery treatment.Growth and physiological indicators were measured.Results After low temperature stress,the facility off-season Angelica sinensis seedlings showed decrease in plant height,stem diameter,root length,root diameter,leaf area,shoot and root fresh weight,and shoot and root dry weight,with a more pronounced effect on aboveground parts.Chlorophyll content was decreased significantly(P<0.05).Malondialdehyde(MDA)content was increased.The activities of SOD and POD were generally increased.The contents of Pro,soluble protein,and soluble sugar were increased,and all showed recovery after 7 days of recovery treatment.Principal component analysis(PCA)revealed that the contents of Pro,soluble protein,and soluble sugar were significantly negatively correlated with the growth indicators of Angelica sinensis seedlings,while CAT activity was significantly positively correlated with the growth indicators.Conclusion Angelica sinensis seedlings under low temperature stress alleviated the damage by slowing down growth and increasing the activities of antioxidant enzymes and the contents of osmoregulatory substances.关键词
当归/低温/幼苗/生长/生理特性Key words
Angelica sinensis(Oliv.)Diels/Low temperature/Seedlings/Growth/Physiological characteristics分类
农业科技引用本文复制引用
丁安萍,蔡子平,彭云霞,王国祥..苗期低温胁迫对当归生长及生理特性的影响[J].时珍国医国药,2026,37(12):2263-2270,8.基金项目
国家重点研发计划(2021YFD1100505) （2021YFD1100505）
中央引导地方科技发展资金项目(22ZY1QA001,YDZX2022163) （22ZY1QA001,YDZX2022163）
西北中药材全程机械化科研基地建设项目(2109-000000-20-01-199092) （2109-000000-20-01-199092）
农业农村部现代农业装备实验室开放基金项目(HT20200395) （HT20200395）
甘肃省陇原青年英才项目 （）
甘肃省现代寒旱特色农业药产业技术体系(GSARS-06) （GSARS-06）
新疆"天池英才"引进计划 （）
甘肃省知识产权计划资助项目(24ZSCQG012,24CXNA013) （24ZSCQG012,24CXNA013）
甘肃省农业科学院成果转化项目(2025GAAS-CGZH07-8) （2025GAAS-CGZH07-8）
定西市揭榜挂帅项目(DX2023AZ39) （DX2023AZ39）
岷县科技计划项目(MX2024XM14R) （MX2024XM14R）
